Consult with your doctor if you experience recurrent, sudden, severe dizziness or prolonged episodes of dizziness, faintness, lightheadedness or vertigo. 1  Definition. 2  Causes.
Dosage of castor oil for constipation relief. Castor oil is taken internally. According to Dr.Mercola and World Health Organization the castor oil intake should not prevail 0.7 mg/kg body weight per day. It is one tablespoon for adults and one teaspoon for children.
Regular use of castor oil laxative for longer than seven days may cause health complications such as long-lasting constipation and loss of intestinal function. It is also possible to have side effects such as persistent nausea, vomiting, dizziness, muscle cramps, and even diarrhea.